Let's Rock and Roll

I am sitting in my car today. I look to my right and see a car rocking back and forth. Is it an earthquake? Then I see a man standing next to the car making it rock back and forth. And then the car in front of him joins in. Is it a riot? Okay, now it is time for me to mention that I am sitting in my car at a gas station. So, apparently (although I have never seen this before) some cars take some rocking back and forth to make sure that the tank fills completely up with gas. It was a funny site. I wish I would have had my video camera to record it and share with you. That's life in Jakarta for you.